[Mike C]

My ‘72 Jimmy has 4.10 and an SM465 with 35” tires while my sons has 3.73 and TH350 with 35’s. Because of the converter, both trucks turn about the same rpm on the road. And the combo of 35’s, 3.73, and TH350 has the factory speedometer more accurate than anything else I own! Originally a 3.08 geared truck, I think 3.73 ideal for a TH350 equipped with 33-35” tire.